Stud-support.



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CHARLES o. wnscorayor Tacoma, WASHINGTON.

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To all whom t may concern:

' Be itv `known that I, CHARLES O. Wnsoor'r, citizen of the UnitedVStates, residing at Tacoma, in the county of Piercerand State ofW'ashington, have invented certain new and useful Improvements inStud-Supports; and I vdo hereby declare the lfollowing to be and exactdescription of the invention, such as will enable others skilled in theart to which itappertains to make and use the same, reference being hadto the accompanying drawings, and to letters 'l or figures of referencemarked thereon,

which form a part of this specification.

This invention relates to means for securing the arch supporting studused in fire boxes, and has for its primary object the provision ofefficient means for supporting and retaining brick studs.`

The object ofthis .invention is provide,V

retaining means for a brick stud of the character set forth, which shallbe so con- .structed as to facilitatethe removal of the brick stud afterthe same has been burned out.

A further object of this invention is to provide a brick stud retainingmeans s o constructed as to permit the removal of a burnedout brickstud, while the rboiler is under pressure.

vA still further object of this invention is to provide a brick studretaining means :which shall be unaected by heat and veasy to install ina position upon the ire box wall.

Vith these andother objects in view, this invention consists in thepeculiar combination and arrangement of the various parts of a brickstud retaining means as hereinafter described and more particularly setforth in the appended claims.

Referring to the drawings wherein similar reference characters indicatesimilar parts wherever used: Figure 1 is a section through a iire boxwall showing the retaining means in place, and F ig. 2 is a detail sideelevation` of the brick stud and supportparts shown in separatedrelation.

3 designates a fire box wall, and 4, the outside boiler wall, securedtogether in the usual manner rby means of a Vstay bolt 5. The lire boxwall 3 is provided with a threaded opening 6, into which is adapted tobe inserted a screw. threaded member 7,

formed upon the outside with threads 8 and similarly threaded internallyat 9, and provided with an internal v concave end l0.

Specification of Letters Patent.

ratenfteaaaa. raars.

Adapted to'fit the concave portion 1() of themember 7 ,is a small brassor other suitable metal block 11.v :A second member 12 externallythreaded at 13 and internally lthreaded at 14 and preferably made'of'brass or'any other suitable heat resisting metal is then screwed"intor the member 7, the outside threads 13 of the member 12Uengaging theinternal threads 9 vof the member 7 until stopped by the fiat face ofthe block 11. An ordinary type of brick stud 15 provided with a threadedend 16 is then inserted, within the member 12, the threaded end 16 ofthe stud 15 engaging the internal' threads 14 of (the member 412. The ystud is then yin posi- ,tion to support the lire-brick 17 in the usualmanner. Y

Due to the construction above described,

it will be seen'that whenthe intense heat of the fire boxhasl burned outthestud 15, it'may be unscrewed from `the member 12 withoutnecessitating the removal of the member 7, which thereforeenables thebrick Y stud to be removed while the boiler is underpressure, the member7 forming an effective1 closure for the opening in the lirey box wal fThe member 12 being formed of brass or any other suitable heat resistingmaterial,

will retain underthe most trying conditions area of the member 7 andwill therefore, at

its travel in the configurationV and threaded all times, present apropersupport for av brick stud, and will be effectively retained by themember 7 I realize that considerable variation of the specific y'detailsof constructionV illustrated and describedherein ymay be resorted towithout departing from the spirit of my f nternally threaded and adaptedto be in- IOO cure by United yStates Letters Patent, is zl serted in afire box wall, a second cylinf drical member externally and internallythreaded, the externalthreads of which are adapted to. engagethevinternal threads of said first mentioned member and the internallthreads of which are adapted to receive the threaded ends ofia bricksupporting stud,

and a heat resisting metallic bloel forming a stop for the furtherinsertion of said second member and said stud.

2. In a ire boX, the combination With a fire boX Wall provided With athreaded opening therethrough, of a cylindrical member closed at itsinner end and externally and internally threaded and adapted to engagethe threaded opening ,in the fire box Wall, a second cylindrical memberexternally and internally threaded, the external threads of Which areadapted to engage the internal threads of said first mentioned member, aheat resisting metallic block in the closed end of said supportingmember and adapted 15 to form a stop for the further insertion of saidsecond member, a stud having a threaded portion adapted to engage theinternal threads of said second mentioned member whereby to supportthestud.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

CHARLES O. WESCOTT.

Witnesses B. F. JAooBs, J. F. FITCH.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

